How To Reset Stock Oxygen OS 4.0.3 On OnePlus 3T [Unbrick Device]

unbrick and restore oneplus 3t to stock firmware

Here is how to restore OnePlus 3T back to stock Oxygen OS 4.0.3 to fix device brick issue or any other serious problem. We are going to walk you through the process that will let you Unbrick and Restore OnePlus 3 to Stock Oxygen OS 4.0.3 to use your phone without any performance issues with software or hardware.

OnePlus 3T is among the most popular Android smartphones purely because of its seamless hardware and software integration that works perfectly for Android developers who prefer this handset over others for creating custom ROMs, MODs, firmware, kernels, apps, and much more. However, tinkering with system files could also leave open the chances of your device getting bricked or seriously damaged that it becomes useless for day to day use. So if you have managed to brick your device, worry no more because here we are going to show you a simple method to restore OnePlus 3T to stock Oxygen OS 4.0.3 to fix device brick or other major issues.

Now lets see how to unbrick OnePlus 3T and restore OnePlus 3T to stock Oxygen OS 4.0.3 firmware. This guide has been made possible thanks to the hard work put in by an XDA member fareed_xtreme, so credit to him and cheers.

Before You Start:

There are a few things to keep in mind before starting the stock firmware flashing process on OnePlus 3T:

  • Steps below will wipe out existing device data, including the internal SD card data, so don’t forget to back up your device data.
  • OnePlus 3T bootloader will be relocked if you unlocked it before this process.
  • This only works with 64-bit Windows device as you will be needing to connect your phone to computer.

Required Download Files:

Download Stock Reset Package 4.0.3.rar > > Link | Mirror

Above file contains:

  • OnePlus 3T Stock Oxygen 4.0.3 – (folder name: OnePlus3T_28_A.041_170208)
  • Qualcomm Drivers (x64 Windows version only) – [folder name: 64-20160925T230624Z]

How To Unbrick OnePlus 3T And Restore Stock Oxygen OS 4.0.3 Firmware

First of all, you will need to extract the file downloaded from the above link to get the above mentioned files. And then perform the steps below to first Install the Qualcomm Drivers and then flash the stock firmware file.

1 – How to Install Qualcomm Drivers

1 – Connect your phone to Windows (64-bit) PC via USB cable.

2 – Power off your device. In case you device is bricked and there is no way of known if it’s been switched off, then keep pressing and holding the power button for around 30 or so seconds to be sure.

3 – Now, hold down the Volume UP button. Upon successful connection with PC you will hear a beep sound.

4 – Open Device Manager on PC: Start > Control Panel > Device Manager.

5 – Click on Other Devices tab to expand it.

6 – Under ‘Other Devices’, you will  see QHSUSB_BULK. Right-click on it and select Update Driver.

7 – Go to the location where your saved 64-20160925T230624Z folder and select it.

8 – Press OK button to install the driver.

2 – Flash Stock Firmware On OnePlus 3T

1 – Open the OnePlus3T_28_A.041_170208 folder.

2 – Next, open MsmDownloadTool V3.0 make sure to do so by right-click on it and select Run As Administrator from the context menu.

3 – Now check if your device is detected by the tool – indicated by one of the rows on the tool showing the device type as ‘COM N’. If it doesn’t, make sure drivers are properly installed on PC.

4 – Click on Verify button. If file verification fails the first time, download images again and repeat the step.

5 – Once verification is successful, hit the Start button to flash the stock firmware file.

6 – At the end of the process your device will automatically reboot. If it doesn’t restart, disconnect it from PC and manually start your phone.

7 – If your device gets stuck in boot loop, switch it off again and boot it into stock recovery by pressing and holding Volume Down + Power Button together and wipe data. Now restart your phone, which should be back to normal now.

That’s all. For further help and queries, drop comments in the section below.

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